As far as grading I'm not going to get into a lot of details. Average condition is a nice collectible card, will state if used and if postmarked. Creases or damage will be noted.
Some tips on dating vintage postcards: Undivided Back 1901 - 1907 * Divided Back 1907 - 1915 * White Border 1915 - 1930 * Linen Type 1930 - 1945 * Chrome 1939 - Present